In the last issue of the Benchmark Quarterly Review we covered the increasing use of high purity alumina (HPA) – characterised by purity levels such as 99.99% (4N) and 99.999% (5N) – in LEDs and its latest role as a separator material in lithium ion batteries. Here we speak to Roland Hill, Managing Director of FYI Resources, about the HPA market and the company’s plans.

Benchmark: Many of Benchmark’s readers will be new to high purity alumina (HPA). Please could you provide an overview of HPA’s properties and the types of applications it . . .

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